| Description | An effect in which two individual perturbations result in opposite mutant phenotypes (relative to wild type) and their combination results in a phenotype that is more severe than the phenotype observed with the same directionality. With respect to any single quantifiable phenotype, this may be expressed as an inequality as: a < wt < b < ab OR ab < a < wt < b where 'a' and 'b' are the observed phenotype values of the individual perturbations, 'ab' is the observed phenotype value of the double perturbation, and 'wt' is the wild type phenotype value. | Namespace | PSI-MI |
| Obsolete | false |
